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Finding the Fourth Proportional to 623,870.82, 860,944.32 and 337,390.90

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Solution

The fourth proportional to 623,870.82, 860,944.32 and 337,390.90 is: 465,600.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,870.82 : 860,944.32 = 337,390.90 : x
  2. Step 2: Convert to fraction form
    623,870.82/860,944.32 = 337,390.90/x
  3. Step 3: Cross multiply
    623,870.82x = 860,944.32 × 337,390.90
  4. Step 4: Simplify right side
    623,870.82x = 290,474,772,983.01
  5. Step 5: Solve for x
    x = 290,474,772,983.01/623,870.82
  6. Step 6: Final answer
    x = 465,600.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.